Facebook Pro is an app that has all the same functions of your favorite social networking site. It doesn't require any installation and doesn't have any additional options.

The user experience is much like the traditional facebbok one: you can log in and read your news feed, send private messages, update your status or do everything else that you can using Facebook in a browser.

So what's the advantage of having Facebook Pro? Because its an app, the icon for Facebook Pro is placed on your Window's task bar, making it easy to access Facebook even if your web browser is closed.